fauxpark de4a47f1cc | 4 years ago | |
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keymaps | 4 years ago | |
README.md | 5 years ago | |
config.h | 5 years ago | |
info.json | 5 years ago | |
jj40.c | 5 years ago | |
jj40.h | 5 years ago | |
rules.mk | 4 years ago | |
usbconfig.h | 6 years ago |
A compact 40% (12x4) ortholinear keyboard kit made and KPRepublic on AliExpress.
Keyboard Maintainer: QMK Community
Hardware Supported: Atmega32A
Hardware Availability: AliExpress
Make example for this keyboard (after setting up your build environment):
make jj40:default:program
See build environment setup then the make instructions for more information.
Note that this is a complete replacement for the firmware, so you won't be using Bootmapper Client to change any keyboard settings, since not all the USB report options are supported.
In addition you may need the AVR toolchain and bootloadHID
(GitHub repo) for flashing:
For macOS:
$ brew cask install crosspack-avr
$ brew install --HEAD https://raw.githubusercontent.com/robertgzr/homebrew-tap/master/bootloadhid.rb
For Linux:
$ sudo apt install libusb-dev
$ wget https://www.obdev.at/downloads/vusb/bootloadHID.2012-12-08.tar.gz
$ tar -xzf bootloadHID.2012-12-08.tar.gz
$ cd bootloadHID.2012-12-08/commandline
$ make
$ sudo cp bootloadHID /usr/bin
In order to use the ././util/atmega32a_program.py
script, which can reboot the board into
the bootloader, you'll need Python 2 with PyUSB installed:
$ pip install pyusb
If you prefer (or are having issues with a program
flash), you can just build it (make jj40:<keymap-name>
and flash the firmware (.hex
file) directly with
bootloadHID
if you boot the board while holding down Backspace
(Top Right Key
) to keep it
in the bootloader:
$ make jj40
$ bootloadHID -r jj40_default.hex
For Windows 10: Windows sometimes doesn't recognize the jj40. The easiest way of flashing a new layout is probably using HIDBootFlash.
Backspace
(Top Right Key
)). It can be found under Human Interface Devices or under Keyboards.make jj40:<keymap-name>
to generate the .hex file in the qmk basis folder. Select the .hex file in HIDBootFlash and press Flash Device.Backspace
(Top Right Key
). This will force it
to boot only the bootloader without loading the firmware. Once this is
done, just reflash the board with the original firmware.tools/usb_detach.c
. See tools/README.md
for more info.If you flash a bad hex (e.g. you have a V1 board without RGB and compile/flash blindly without editing your rules.mk), your jj40 is now semi-bricked and you're stuck unless you have access to an ISP. The ISP Flashing Guide contains very good (but somewhat generalized) information. However, the instructions below should get you up and running provided you have an Arduino or clone.
avrdude -b 19200 -c avrisp -p atmega32 -v -e -U hfuse:w:0xD0:m -U lfuse:w:0x0F:m -U flash:w:main.hex:i -P comPORT
comPORT
to whatever port is used by the Arduino (e.g. com11
in Windows or /dev/ttyACM0
in Linux). Use Device Manager in Windows to find the port being used. Use ls /dev/tty*
in Linux.